3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = new ArrayObject(array(1, 2)); $it = new $array->getIterator(); while ($it->valid()) { echo $it->current(); $prev = clone $it; $it->next(); } $array[] = 3; $it = $prev; $prev->next(); echo $it->valid() ? $it->current() : "not valid";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0100.01018.56
8.3.50.0100.00821.21
8.3.40.0040.01118.97
8.3.30.0120.00320.15
8.3.20.0040.00420.30
8.3.10.0040.00422.13
8.3.00.0040.00422.43
8.2.180.0100.01016.63
8.2.170.0100.01022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0050.00326.16
8.2.120.0080.00019.54
8.2.110.0090.00022.15
8.2.100.0080.00319.34
8.2.90.0000.00719.05
8.2.80.0040.00419.30
8.2.70.0050.00317.25
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0000.00818.09
8.2.30.0050.00218.00
8.2.20.0040.00417.68
8.2.10.0080.00017.70
8.2.00.0080.00319.53
8.1.280.0110.00425.92
8.1.270.0100.01020.23
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0040.00423.98
8.1.230.0030.01019.09
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0060.00317.50
8.1.180.0000.00818.79
8.1.170.0040.00418.66
8.1.160.0000.00722.14
8.1.150.0040.00418.55
8.1.140.0040.00417.40
8.1.130.0000.00717.75
8.1.120.0000.00717.42
8.1.110.0050.00317.37
8.1.100.0000.00717.30
8.1.90.0000.00717.33
8.1.80.0000.00717.29
8.1.70.0030.00317.38
8.1.60.0030.00517.41
8.1.50.0000.00717.41
8.1.40.0050.00317.54
8.1.30.0060.00317.53
8.1.20.0050.00317.68
8.1.10.0000.00717.47
8.1.00.0040.00417.44
8.0.300.0000.00718.77
8.0.290.0040.00417.04
8.0.280.0030.00318.30
8.0.270.0070.00017.16
8.0.260.0000.00616.82
8.0.250.0030.00316.98
8.0.240.0050.00316.89
8.0.230.0040.00416.94
8.0.220.0070.00016.80
8.0.210.0070.00016.95
8.0.200.0030.00316.95
8.0.190.0030.00616.98
8.0.180.0050.00316.92
8.0.170.0040.00416.96
8.0.160.0030.00316.86
8.0.150.0000.00716.81
8.0.140.0000.00816.87
8.0.130.0000.00513.37
8.0.120.0060.00316.75
8.0.110.0030.00516.85
8.0.100.0000.00816.88
8.0.90.0070.00016.70
8.0.80.0070.01016.86
8.0.70.0040.00416.76
8.0.60.0070.00016.96
8.0.50.0000.00716.95
8.0.30.0080.01016.86
8.0.20.0090.00917.40
8.0.10.0000.00716.90
8.0.00.0110.00916.60
7.4.330.0020.00215.00
7.4.320.0030.00316.36
7.4.300.0000.00616.61
7.4.290.0030.00316.52
7.4.280.0000.00716.46
7.4.270.0030.00316.62
7.4.260.0070.00016.49
7.4.250.0000.00716.51
7.4.240.0020.00516.58
7.4.230.0000.00716.36
7.4.220.0090.00916.54
7.4.210.0100.00616.61
7.4.200.0030.00416.58
7.4.190.0070.00016.77
7.4.160.0080.00816.30
7.4.150.0100.00717.40
7.4.140.0130.00517.86
7.4.130.0100.00816.51
7.4.120.0130.00416.58
7.4.110.0150.00316.48
7.4.100.0040.01316.50
7.4.90.0090.00916.70
7.4.80.0060.01619.39
7.4.70.0130.00716.56
7.4.60.0120.00916.63
7.4.50.0030.00616.59
7.4.40.0070.01122.77
7.4.30.0100.00716.64
7.4.00.0090.00915.00
7.3.330.0000.00513.01
7.3.320.0070.00012.99
7.3.310.0000.00716.33
7.3.300.0050.00316.26
7.3.290.0120.00316.22
7.3.280.0110.00616.28
7.3.270.0140.00317.40
7.3.260.0090.00916.46
7.3.250.0060.01316.35
7.3.240.0080.00816.26
7.3.230.0060.01216.43
7.3.210.0170.00416.47
7.3.200.0070.01119.39
7.3.190.0000.01916.31
7.3.180.0160.00016.35
7.3.170.0130.00316.48
7.3.160.0120.00316.39
7.3.120.0050.00914.61
7.3.110.0040.01414.70
7.3.100.0060.00914.86
7.3.90.0100.00714.75
7.3.80.0100.00714.93
7.3.70.0110.00314.81
7.3.60.0000.01414.50
7.3.50.0120.00314.77
7.3.40.0000.00914.57
7.3.30.0070.00714.70
7.3.20.0040.01116.71
7.3.10.0060.00316.74
7.3.00.0050.00516.63
7.2.330.0110.00716.78
7.2.320.0090.01516.54
7.2.310.0100.00616.23
7.2.300.0150.00416.28
7.2.290.0080.00916.40
7.2.250.0070.01115.24
7.2.240.0080.01115.21
7.2.230.0030.01215.07
7.2.220.0140.00415.19
7.2.210.0100.00714.55
7.2.200.0030.01414.98
7.2.190.0040.01214.99
7.2.180.0100.00014.93
7.2.170.0030.01214.93
7.2.60.0040.01117.03
7.2.00.0000.01419.29
7.1.330.0110.00415.62
7.1.320.0060.01015.49
7.1.310.0040.00715.75
7.1.300.0130.00315.49
7.1.290.0050.00515.72
7.1.280.0090.00015.66
7.1.270.0040.01115.55
7.1.260.0070.01015.83
7.1.200.0070.00715.81
7.1.100.0110.00417.92
7.1.70.0070.00317.05
7.1.60.0090.01519.40
7.1.50.0000.01616.95
7.1.00.0100.06322.33
7.0.200.0070.00016.62
7.0.140.0000.07722.12
7.0.60.0170.07319.86
7.0.50.0100.07717.80
7.0.40.0070.08320.30
7.0.30.0230.06720.04
7.0.20.0300.06320.20
7.0.10.0330.07720.17
7.0.00.0070.08320.00
5.6.280.0070.07320.86
5.6.210.0030.08320.61
5.6.200.0070.08718.11
5.6.190.0030.09720.76
5.6.180.2770.04720.60
5.6.170.0300.04020.48
5.6.160.0130.07020.40
5.6.150.0070.08318.11
5.6.140.0100.03318.11
5.6.130.0030.04718.12
5.6.120.0100.06721.13
5.6.110.0100.08021.11
5.6.100.0130.07720.97
5.6.90.0070.05021.03
5.6.80.0070.06720.28
5.6.70.0200.07720.37
5.5.350.0130.08320.43
5.5.340.0000.05317.96
5.5.330.0070.08020.21
5.5.320.0100.04720.13
5.5.310.0270.08020.23
5.5.300.0100.04317.93
5.5.290.0100.08718.01
5.5.280.0130.06020.89
5.5.270.0070.05320.79
5.5.260.0030.07020.83
5.5.250.0030.04020.70
5.5.240.0170.03720.26
5.4.450.0830.07019.61
5.4.440.0730.05319.24
5.4.430.0870.05719.63
5.4.420.0700.06019.48
5.4.410.0670.05019.35
5.4.400.0500.06318.59
5.4.390.0600.06018.61
5.4.380.0200.07318.68
5.4.370.0100.05718.65
5.4.360.0170.05018.49
5.4.350.0070.03911.98
5.4.340.0110.03311.98
5.4.320.0060.03712.46
5.4.310.0030.04012.45
5.4.300.0050.03612.46
5.4.290.0080.04312.45
5.4.280.0070.03512.35
5.4.270.0050.03712.35
5.4.260.0030.04012.35
5.4.250.0200.05018.97
5.4.240.0070.07318.80
5.4.230.0000.07018.84
5.4.220.0170.04718.91
5.4.210.0100.04718.97
5.4.200.0100.04718.70
5.4.190.0100.04718.96
5.4.180.0070.05318.75
5.4.170.0100.05018.84
5.4.160.0070.05018.74
5.4.150.0030.05718.86
5.4.140.0070.07716.27
5.4.130.0070.04716.23
5.4.120.0100.04716.44
5.4.110.0100.05016.48
5.4.100.0030.05316.33
5.4.90.0170.06316.32
5.4.80.0070.04316.45
5.4.70.0070.05016.33
5.4.60.0100.04716.45
5.4.50.0100.04716.30
5.4.40.0100.04316.27
5.4.30.0070.05016.20
5.4.20.0130.05716.35
5.4.10.0100.04716.37
5.4.00.0030.05315.93
5.3.290.0110.03912.80
5.3.280.0100.05714.45
5.3.270.0130.06014.63
5.3.260.0130.04714.52
5.3.250.0070.05014.62
5.3.240.0070.05014.46
5.3.230.0070.04714.61
5.3.220.0030.05314.58
5.3.210.0070.05314.41
5.3.200.0100.04314.58
5.3.190.0100.04714.57
5.3.180.0030.05714.47
5.3.170.0100.05014.45
5.3.160.0130.04314.42
5.3.150.0030.07314.26
5.3.140.0130.04714.39
5.3.130.0070.06014.46
5.3.120.0100.05014.56
5.3.110.0070.05314.55
5.3.100.0170.04314.18
5.3.90.0030.05314.05
5.3.80.0130.04313.95
5.3.70.0100.04713.87
5.3.60.0200.05314.01
5.3.50.0030.05013.95
5.3.40.0070.05713.96
5.3.30.0100.06013.79
5.3.20.0070.05013.68
5.3.10.0070.06713.64
5.3.00.0030.05313.65
5.2.170.0030.04310.97
5.2.160.0070.03711.14
5.2.150.0070.04311.15
5.2.140.0070.04011.16
5.2.130.0130.03311.20
5.2.120.0070.03711.25
5.2.110.0030.04011.19
5.2.100.0030.03711.19
5.2.90.0030.04011.02
5.2.80.0070.03711.09
5.2.70.0100.03311.20
5.2.60.0070.03710.96
5.2.50.0030.04011.01
5.2.40.0100.03310.88
5.2.30.0070.03710.89
5.2.20.0000.04311.05
5.2.10.0070.04011.03
5.2.00.0030.04010.79
5.1.60.0030.0379.92
5.1.50.0030.03310.22
5.1.40.0030.03310.17
5.1.30.0000.04010.23
5.1.20.0030.03710.29
5.1.10.0070.0339.95
5.1.00.0070.04310.10
5.0.50.0000.0308.50
5.0.40.0100.0208.34
5.0.30.0000.0438.31
5.0.20.0070.0238.16
5.0.10.0070.0238.25
5.0.00.0030.0408.14
4.4.90.0000.0206.98
4.4.80.0000.0236.98
4.4.70.0130.0176.98
4.4.60.0030.0206.98
4.4.50.0030.0206.98
4.4.40.0000.0376.98
4.4.30.0000.0236.98
4.4.20.0030.0206.98
4.4.10.0070.0176.98
4.4.00.0030.0376.98
4.3.110.0100.0136.98
4.3.100.0030.0206.98
4.3.90.0070.0176.98
4.3.80.0070.0306.98
4.3.70.0000.0236.98
4.3.60.0000.0236.98
4.3.50.0000.0236.98
4.3.40.0030.0306.98
4.3.30.0070.0236.98
4.3.20.0100.0136.98
4.3.10.0000.0236.98
4.3.00.0170.0177.96

preferences:
39.74 ms | 401 KiB | 5 Q